<template>
	<div style="letter-spacing: 1px">
		<P style="text-align: right;">
			
		</P>
		
	    <div class="head">
	      <!-- 评论区域如果当前用户有头像则显示头像,没有则显示默认头像 -->
	      <img v-if="picture" :src="`http://` + picture" alt="" />
	      <img v-else src="https://fuss10.elemecdn.com/e/5d/4a731a90594a4af544c0c25941171jpeg.jpeg" alt="" />
	      <!-- 评论框 -->
	      <input
	        type="text"
	        placeholder="请输入评论 . . ."
	        ref="input"
	        @focus="obtain"
	        @blur="lose"
	        v-model="firstComments"
	        @keyup.enter="sumbit"
	      />
	      <!-- 发布按钮 -->
	      <button @click="sumbit">发表评论</button>
	    </div>
	    <div class="content">
	      <!-- 一级评论 -->
	      <div class="first" v-for="(item, index) in comments" :key="index">
	        <a href="javascript:;" class="first-img">
	          <!-- 如果当前用户有头像则显示头像,没有则显示默认头像 -->
	          <!-- <img :src="`http://` + item.picture" /> -->
	          <img v-if="item.picture" :src="`http://` + item.picture" alt="" />
	          <img v-else src="https://fuss10.elemecdn.com/e/5d/4a731a90594a4af544c0c25941171jpeg.jpeg" alt="" />
	        </a>
	        <div class="first-content">
	          <!-- 一级评论用户昵称 -->
	          <h3 class="first-username">{{ item.username }}</h3>
	          <!-- 一级评论发布时间 -->
	          <span class="first-time">{{ item.date }}</span>
	          <!-- 一级评论评论内容 -->
	          <p class="first-comment">
	            {{ item.content }}
	          </p>
	          <!-- 一级评论评论点赞 -->
	          <div
	            class="first-right"
	            @mouseleave="delete_leave(item)"
	            @mouseover="delete_after(item)"
	          >
	            <span
	              class="delete"
	              v-if="item.delete"
	              @click="comment_delete(item, '父级', index)"
	              >删除</span
	            >
	            <span class="comments" @click="comment_input(item)">评论</span>
	            <!-- 一级评论点赞数 -->
	            <span
	              class="praise"
	              :class="item.like"
	              @click="comment_like(item, 0)"
	            >
	              <span v-if="item.numbers">{{ item.numbers }}</span>
	            </span>
	          </div>
	          <!-- 回复一级评论 -->
	          <div class="reply-comment" v-if="item.display">
	            <input
	              type="text"
	              placeholder="请输入评论 . . ."
	              v-model="childComments"
	              @keyup.enter="reply_sumbit(item, '父级', index)"
				  @blur="lose(item)"
	            />
	            <!-- 0为回复一级评论 -->
	            <button @click="reply_sumbit(item, '父级', index)">发表评论</button>
	          </div>
	          <!-- 次级评论 -->
	          <div class="second">
	            <ul>
	              <li v-for="(sons, sons_index) in item.sons" :key="sons_index" >
	                <div class="top">
	                  <!-- 次级评论头像,该用户没有头像则显示默认头像 -->
	                  <a href="JavaScript:;" class="second-img">
						<img v-if="sons.picture" :src="sons.picture" />
	                    <!-- <img v-if="sons.picture" :src="`http://` + sons.picture" /> -->
	                    <img v-else src="/logo1.png" />
	                  </a>
	                  <div class="second-content">
	                    <!-- 次级评论用户昵称 -->
	                    <h3 class="second-username">{{ sons.username }}</h3>
	                    <!-- 次级评论评论时间 -->
	                    <span class="second-time">{{ sons.date }}</span>
	                    <!-- 次级评论内容 xxx回复xxx：评论内容-->
	                    <p class="second-comment">
	                      <span class="second-reply">
	                        <span class="to_reply">{{ sons.username }}</span>
	                        回复
	                        <span class="to_reply">{{ sons.to_username }}</span
	                        >：
	                      </span>
	                      {{ sons.content }}
	                    </p>
	                    <!-- 次级评论评论点赞 -->
	                    <div
	                      class="second-right"
	                      @mouseleave="delete_leave(sons)"
	                      @mouseover="delete_after(sons)"
	                    >
	                      <span
	                        class="delete"
	                        v-if="sons.delete"
	                        @click="comment_delete(sons, '子级',index,sons_index)"
	                        >删除</span
	                      >
	                      <span class="comments" @click="comment_input(sons)"
	                        >评论</span
	                      >
	                      <!-- 次级评论点赞数 -->
	                      <span
	                        class="praise"
	                        :class="sons.like"
	                        @click="comment_like(sons, 1)"
	                      >
	                        <span v-if="sons.numbers">{{
	                          sons.numbers
	                        }}</span></span
	                      >
	                    </div>
	                  </div>
	                </div>
	                <!-- 回复次级评论 -->
	                <div class="reply-comment reply_li" v-if="sons.display">
	                  <input
	                    type="text"
	                    placeholder="请输入评论 . . ."
	                    v-model="childComments"
	                    @keyup.enter="reply_sumbit(sons,'子级',index,sons_index)"
						@blur="lose(sons)"
	                  />
	                  <!-- 1为回复次级评论 -->
	                  <button @click="reply_sumbit(sons,'子级',index,sons_index)">发表评论</button>
					  
	                </div>
	              </li>
	            </ul>
	          </div>
	        </div>
	      </div>
	      <!-- 暂无评论的空状态 -->
	      <el-empty description="暂无评论" v-if="show"></el-empty>
	    </div>
	    <!-- 页码 -->
<!-- 	    <div style="text-align: center; margin-top: 15px" v-if="showPage">
	      <el-pagination
	        background
	        layout="prev, pager, next"
	        :total="totalNumber * 10"
	        @current-change="currentPage"
	        :current-page="page"
	      >
	      </el-pagination>
	    </div> -->
	  </div>
</template>

<script>
	export default{
		data(){
			return{
				current:new Date(),	//时间
				picture:'',
				firstComments:'',
				comments:[{
					username:'admin',
					date:'2023年3月11日13:58:58',
					content:'今日事今日毕',
					delete:true,	//删除按钮显示
					flag:false,
					like:'',
					display:false,	//显示评论区
					numbers:2,		//点赞数
					sons:[{
						username:'杨宇伦',
						date:'2023年3月11日13:58:58',
						content:'春有百花秋有月，夏有凉风冬有雪',
						delete:true,	//删除按钮是否显示
						like:1,
						display:false,
						picture:'https://fuss10.elemecdn.com/1/34/19aa98b1fcb2781c4fba33d850549jpeg.jpeg',
						to_username:'Champion',
						numbers:1,		//点赞数
					},{
						username:'徐晨',
						date:'2023年3月11日14:18:26',
						content:'千人同心则得千人力，万人异心则无一人之用',
						delete:true,
						display:false,
						picture:'https://fuss10.elemecdn.com/0/6f/e35ff375812e6b0020b6b4e8f9583jpeg.jpeg',
						to_username:'Champion',
						numbers:5,		//点赞数
					},{
						username:'刘孜钦',
						date:'2023年3月11日14:18:26',
						content:'百年修得同船渡，千年修得共枕眠',
						delete:true,
						display:false,
						picture:'https://fuss10.elemecdn.com/3/28/bbf893f792f03a54408b3b7a7ebf0jpeg.jpeg',
						to_username:'Champion',
						numbers:12,		//点赞数
					},]
				}],
				childComments:'',
				
				show:false	//暂无条件显示
			}
		},
		methods:{
			obtain(){
				
			},
			// 评价框 失焦
			lose(m){
				// m.display = false
				// this.firstComments = ''
				// this.childComments = ''
			},
			// 发表评论
			sumbit(){
				
				this.current = new Date();	//获取当前时间年月日、时分秒
				
				this.comments.push({
					username:'Champion',
					date:this.current.getFullYear() + '年' + (this.current.getMonth() + 1) + '月' + this.current.getDate() + '日' + this.current.getHours() + ':' + this.current.getMinutes() + ':' + this.current.getSeconds(),
					content:this.firstComments,
					delete:true,
					display:false,
					flag:false,
					like:'',
					display:false,	//显示评论区
					sons:[]
				})
				this.firstComments = ''
				
			},
			// 评价展示
			comment_input(m){
				m.display = true
			},
			comment_like(){
				
			},
			comment_delete(m,n,w,t){
				console.log(121)
				
				// 当前评论的用户id和当前登录的用户id相同时则可删除该条评论
				 //this.$set(this.comments[i].sons[j], "delete", false);
				console.log(m)
				console.log(n)	//父级 或者 子级
				console.log(w)	//父级的下标
				console.log(t)	//子级的下标
				
				if(n == '子级'){
					this.comments[w].sons.splice(t,1);
				}else if(n == '父级'){
					this.comments.splice(w,1)
				}else{
					
				}
			},
			delete_leave(m){
				// m.delete = false
			},
			delete_after(m){
				console.log(m);
				// m.delete = true
			},
			reply_sumbit(m,n,w,t){
				console.log((m))
				// console.log(m)
				// console.log(n)
				// console.log(w)	//父级的下标
				// console.log(t)	//子级的下标
				var index;
				if(n == '父级'){
					index = t
				}else if( n == '子级'){
					index = t+ 1;
				}
				this.comments[w].sons.splice(index, 0, {
					username:'Champion',
					date:this.current.getFullYear() + '年' + (this.current.getMonth() + 1) + '月' + this.current.getDate() + '日' + this.current.getHours() + ':' + this.current.getMinutes() + ':' + this.current.getSeconds(),
					content:this.childComments,
					delete:true,
					display:false,
					flag:false,
					like:'',
					display:false,	//显示评论区
					to_username:m.username,
				})	
				this.firstComments = ''
				this.childComments = ''
				m.display = false
			}
		},
		created() {
			
		}
	}
</script>

<style>
	/* 评论框 */
	.head {
	  background-color: rgb(248, 248, 248);
	  position: relative;
	  height: 75px;
	  border-radius: 5px;
	}
	.head img {
	  width: 55px;
	  height: 55px;
	  border-radius: 50%;
	  position: absolute;
	  top: 10px;
	  left: 13px;
	}
	/* 评论框 */
	.head input {
	  position: absolute;
	  top: 13px;
	  left: 80px;
	  height: 45px;
	  border-radius: 5px;
	  outline: none;
	  width: 65%;
	  font-size: 20px;
	  padding: 0 20px;
	  border: 2px solid #f8f8f8;
	}
	/* 发布评论按钮 */
	.head button {
	  position: absolute;
	  top: 13px;
	  right: 20px;
	  width: 120px;
	  height: 48px;
	  border: 0;
	  border-radius: 5px;
	  font-size: 20px;
	  font-weight: 500;
	  color: #fff;
	  background-color: rgb(118, 211, 248);
	  cursor: pointer;
	  letter-spacing: 2px;
	}
	/* 鼠标经过字体加粗 */
	.head button:hover {
	  font-weight: 600;
	}
	 
	/* 评论内容区域 */
	.content .first {
	  display: flex;
	  position: relative;
	  padding: 10px 10px 0px 0;
	  text-align: left;
	}
	.first .first-img {
	  flex: 1;
	  text-align: center;
	}
	.first img {
	  width: 50px;
	  height: 50px;
	  border-radius: 50%;
	}
	.first-username,
	.second-username {
	  color: #504f4f;
	}
	.first-content {
	  flex: 9;
	}
	.first-time,
	.second-time {
	  color: #767575;
	}
	.first-comment,
	.second-comment {
	  margin-top: 5px;
	}
	/* 右边点赞和评论 */
	.first-right,
	.second-right {
	  position: absolute;
	  right: 1%;
	  top: 10px;
	}
	.first-right span,
	.second-right span {
	  margin-right: 20px;
	  cursor: pointer;
	}
	/* 删除评论 */
	.delete:hover {
	  color: red;
	}
	/* 评论字体图标 */
	.comments::before {
	  /* 想使用的icon的十六制编码，去掉&#x之后的 */
	  content: "\e8b9";
	  /* 必须加 */
	  font-family: "iconfont";
	  margin-right: 4px;
	  font-size: 16px;
	}
	/* 点赞字体图标 */
	.praise::before {
	  /* 想使用的icon的十六制编码，去掉&#x之后的 */
	  content: "\ec7f";
	  /* 必须加 */
	  font-family: "iconfont";
	  margin-right: 4px;
	  font-size: 19px;
	}
	.second {
	  background-color: #f3f3f3;
	  margin-top: 10px;
	}
	.second li {
	  padding: 10px 10px 10px 0;
	  border-bottom: 1px solid rgb(237, 237, 237);
	}
	.second .top {
	  display: flex;
	  position: relative;
	}
	.second-img {
	  flex: 1;
	  text-align: center;
	}
	.to_reply {
	  color: rgb(106, 106, 106);
	}
	.second-content {
	  flex: 9;
	}
	.second .reply_li {
	  margin-left: 70px;
	}
	/* 评论框 */
	.reply-comment {
	  margin: 10px 0 0 0;
	}
	.reply-comment input {
	  height: 40px;
	  border-radius: 5px;
	  outline: none;
	  width: 70%;
	  font-size: 18px;
	  padding: 0 20px;
	  /* border: 2px solid #f8f8f8; */
	  border: 2px solid skyblue;
	}
	/* 发布评论按钮 */
	.reply-comment button {
	  width: 15%;
	  height: 43px;
	  border: 0;
	  border-radius: 5px;
	  font-size: 18px;
	  font-weight: 500;
	  color: #fff;
	  background-color: rgb(118, 211, 248);
	  cursor: pointer;
	  letter-spacing: 2px;
	  margin-left: 20px;
	}
	/* 鼠标经过字体加粗 */
	.reply-comment button:hover {
	  font-weight: 600;
	}
	/* 评论点赞颜色 */
	.comment-like {
	  color: red;
	}
</style>
